feat: add thinking parameter to OllamaChatCompleteConfig

[siddharthsambharia-portkey]

Description

This PR adds thinking parameter support for Ollama provider

Motivation

--

Type of Change

• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] Documentation update
• [ ] Refactoring (no functional changes)

How Has This Been Tested?

• [ ] Unit Tests
• [ ] Integration Tests
• [x] Manual Testing

Screenshots (if applicable)

Checklist

• [ ] My code follows the style guidelines of this project
• [ ] I have performed a self-review of my own code
• [ ] I have commented my code, particularly in hard-to-understand areas
• [ ] I have made corresponding changes to the documentation
• [ ] My changes generate no new warnings
• [ ] I have added tests that prove my fix is effective or that my feature works
• [ ] New and existing unit tests pass locally with my changes

Related Issues

Fixes And Closes #1414

[matter-code-review[bot]]

Summary By MatterAI

🔄 What Changed

Added a new think parameter to the OllamaChatCompleteConfig to control thinking behavior with a transformation function that maps the thinking parameter's type to a boolean value.

🔍 Impact of the Change

This change introduces a new configurable option for Ollama chat completions, allowing users to enable or disable thinking behavior based on the parameter's type. The transformation function ensures proper mapping of the parameter to a boolean value for API consumption.

📁 Total Files Changed

File	ChangeLog
Ollama Chat	Added think parameter with transformation logic to map thinking type to boolean

🧪 Test Added/Recommended

Recommended

• Unit tests for the new think parameter transformation function
• Integration tests to verify the parameter is correctly passed to the Ollama API

🔒Security Vulnerabilities

N/A